Description

1-Hydroxy-4-(2-Methylphenylazo)-2-Naphthoic Acid is an azo dye intermediate characterized by its specific molecular structure. This compound matters for its role as a key precursor in the synthesis of high-performance pigments and dyes, offering precise color properties and stability. Industries that require it include manufacturers of organic pigments, specialty inks, and advanced colorants for plastics and coatings.

Application

• Primary intermediate for the synthesis of high-performance azo pigments and dyes.
• Key raw material in the production of specialty colorants for plastics and synthetic fibers.
• Used in formulating industrial inks and coatings requiring specific lightfastness and chemical resistance.
• Employed in the research and development of novel functional dyes for non-textile applications.
• Acts as a chemical building block in organic synthesis for more complex chromophores.
• Potential use in the development of analytical reagents and indicators.

Basic Information

Product Name	1-Hydroxy-4-(2-Methylphenylazo)-2-Naphthoic Acid
CAS No.	26233-08-9
Molecular Formula	C18H14N2O3
Molecular Weight	306.32 g/mol
Synonyms	4-(2-Methylphenylazo)-1-hydroxy-2-naphthoic acid; C.I. Pigment Red 243; 1-Hydroxy-4-(o-tolylazo)-2-naphthoic Acid; 2-Naphthalenecarboxylic acid, 1-hydroxy-4-[(2-methylphenyl)azo]-; o-Tolylazo-1-hydroxy-2-naphthoic acid; 1-Hydroxy-4-(2-methylphenylazo)naphthalene-2-carboxylic acid; C.I. 15910
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. We implement strict in-process controls and final batch analysis to guarantee consistent purity and performance as a dye intermediate. Certificates of Analysis (COA) detailing key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be kept in the dark or in opaque packaging.

Specification

Item	Specification
Appearance	Orange to red powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.